remove the nu from the 1d second order model

Author: yolhan83

src/1DModel/Ord2/1dmodelord2.jl

@@ -1,5 +1,4 @@
 struct BloodFlowEquations1DOrd2{T <:Real,E} <: Trixi.AbstractEquationsParabolic{1, 4, GradientVariablesConservative}
-    nu ::T
     model1d ::E
 end
 Trixi.varnames(mapin,eq::BloodFlowTrixi.BloodFlowEquations1DOrd2) = Trixi.varnames(mapin,eq.model1d)
@@ -8,7 +7,7 @@ function Trixi.flux(u,gradients,orientation::Int,eq_parab ::BloodFlowEquations1D
     dudx = gradients
     a,Q,_,A0 = u
     A = a+A0
-    val = 3*eq_parab.nu * (-(dudx[1] + dudx[4])*Q/A + dudx[2])
+    val = 3*eq_parab.model1d.nu * (-(dudx[1] + dudx[4])*Q/A + dudx[2])
     return SVector(0.0,val,0,0)
 end
 

src/2DModel/Test_Cases/pressure_in.jl

@@ -17,7 +17,7 @@ function initial_condition_simple(x, t, eq::BloodFlowEquations2D; R0=2.0)
     A0 = T(R0^2 / 2)
     QRθ = T(0.0)
     Qs = T(0.0)
-    E = T(1e7)
+    E = T(1e7) 
     return SVector(zero(T), QRθ, Qs, E, A0)
 end